Efflorescence is the crystalline deposit of salts left behind on surfaces after water evaporates. It is white or greyish in color and forms on porous surfaces, such as brick, concrete, stone, or stucco. Efflorescence is unsightly, but it is not dangerous; however, the source of the water migration should be determined since it can indicate that a more serious problem exists elsewhere. It is preferable to use general cleaning compounds and pressurized water to remove light efflorescence deposits. a normal house washing will not remove these stains.
Rust occurs when iron reacts chemically with oxygen and/or moisture (oxidation). Rust, or iron oxide, is reddish in appearance and causes spots on concrete, brick, stucco, and many other surfaces. If left untreated rust can stain your surfaces and while you may be able to remove some rust with a quick scrubbing, rust stain removal is a bit more difficult. Commercial grade rust removers can be hazardous and dangerous. Oakland Power Washing provides a safe and effective rust removal service for you and your property.
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